BIG DATA!
I think one of the more promising novelties in finance is the application of “big data” in financial research as well as in practical investment activities. The amount of data that is available in the world today is clearly huge. Most likely this is still just a fraction of the amounts that will be available in five or ten years’ time though. Similarly, the financial usage of (truly) huge data volumes, while definitely taking off already today, is still largely in waiting. Personally, I have touched upon big data in my own research and, for instance, in the paper News Aggregators, Volatility and the Stock Market I collect news volumes using a certain well-known and web-based news aggregator . While this paper focused on news in English (currently the dominant language for web news) I have also looked at news volumes in Chinese (Mandarin, potentially a future dominant in web news) and the picture is the same, at least for the Hong Kong market; the link between stock volatilities and th